/* 图标自定义 */
.ztree{
    li{
        span.button{
            //图标样式
            &.m_icon_1_ico_docu,
            &.m_icon_1_ico_open,
            &.m_icon_1_ico_close,
            &.m_icon_2_ico_docu,
            &.m_icon_2_ico_open,
            &.m_icon_2_ico_close,
            &.m_icon_3_ico_docu,
            &.m_icon_3_ico_open,
            &.m_icon_3_ico_close,
            &.m_icon_4_ico_docu,
            &.m_icon_4_ico_open,
            &.m_icon_4_ico_close{
                width:21px;
                height:30px;
                line-height: 30px;
                margin-right:3px; 
                background: url(../McakeStyle/images/icon.png) no-repeat;
                vertical-align:top;
            }
            &.m_icon_1_ico_docu,
            &.m_icon_1_ico_open,
            &.m_icon_1_ico_close{
                background-position: 0 12px;
            }
            &.m_icon_2_ico_docu,
            &.m_icon_2_ico_open,
            &.m_icon_2_ico_close{
                background-position: -21px 12px;
            }
            &.m_icon_3_ico_docu,
            &.m_icon_3_ico_open,
            &.m_icon_3_ico_close{
                background-position: -42px 12px;
            }
            &.m_icon_4_ico_docu,
            &.m_icon_4_ico_open,
            &.m_icon_4_ico_close{
                background-position: -63px 12px;
            }
        }
    }
}